LONDON, England (CNN) -- You've just arrived in one of the biggest cities in the world, have traveled for a day by plane to get here and you hardly know a soul.

CNN: Meet you at the gumtree

One of the biggest cities hit Saturday and early Sunday was Wichita, Kansas, where resident Katie Sykes said torrential rains produced a "river in my front yard" and the prospect of a tornado had her shuddering in fear.

CNN: April 16, 2012 -- Updated 0326 GMT (1126 HKT)

Of course, the fact that you pointed out you are from Chicago, I would like to point out that this is one of the biggest Bulgarian cities -- over 150, 000 Bulgarians make Chicago their home.

WHITEHOUSE: President Obama's Bilateral Meeting with Prime Minister Boyko Borissov of Bulgaria | The White House

It was dusk when we finally trudged into Nablus, one of the West Bank's biggest cities - and one of the world's oldest, called Shechem in the Bible.

BBC: Part II: The road to Bethlehem

Winning the mayoral election would mean more for Mr Lopez than merely taking on the administration of half of one of the world's biggest cities.

ECONOMIST: Mexico

One of the biggest problems is that big cities are often split off from some of their suburbs, resulting in a higher GDP count for a lower population.

ECONOMIST: Letters

Acapulco, the biggest resort city in the area, is now considered to be one of the most violent cities in the country.

FORBES: Looking Back at 2012: A Year of #Mexico #Drugwar Tweets